Abstract: A drive apparatus and an electric vehicle are provided to implement fault monitoring functions of two control chips when one watchdog chip is configured. The drive apparatus includes a first control chip, a second control chip, a first drive circuit, a second drive circuit, a watchdog chip, and a reset shutdown circuit. The first drive circuit generates a drive signal of a first inverter. The second drive circuit generates a drive signal of a second inverter. The first control chip and the second control chip perform fault monitoring on each other.

Abstract: The present invention discloses a key joint motion estimation based method for estimating continuous human postures. A motion estimation block matching algorithm is applied to human key joint tracking, so as to obtain continuous human posture results. Meanwhile, the results are continuously corrected by using a deep neural network based human posture estimator. The present invention may estimate the continuous human postures in a video stream, where the human postures are specifically embodied as coordinate positions of human joints in a video frame. Compared with a posture estimation method completely relying on a deep neural network, the posture estimation method provided by the present invention has the advantages of high frame rate, low hardware requirements, and sequential continuity of recognition results; and compared with a posture estimation method completely relying on a motion estimation algorithm, the present invention may correct a cumulative error, to improve the estimation accuracy.

Abstract: The present disclosure provides an apparent resistivity-depth section generating method for short-offset electromagnetic exploration, including: determining, in field zones divided quantitatively based on the induction number, positions of a recording point for each of observation points and frequencies or a time window thereof; and taking determined positions of the recording point as the assignment point for the observation point and the frequencies or the time window thereof, where one survey line of an axial configuration generates one apparent resistivity-depth section along the survey line; and one survey line of an equatorial configuration typically generates one apparent resistivity-depth section along the survey line, and apparent resistivity-depth sections along connecting lines from the observation points to the source which are the same as observation points in the number.

Abstract: The present disclosure provides a method and a device for determining a motion parameter of an autonomous mobile device. The method includes: an anti-fall sensor detects a current chassis-floor distance between a chassis of the autonomous mobile device and a current floor, and transmits the current chassis-floor distance to a processor; the processor determines a correction coefficient corresponding to the current chassis-floor distance; the processor obtains an output of an optic flow sensor; the processor determines the motion parameter corresponding to the current chassis-floor distance based on a correction coefficient, a calibration coefficient, and the output of the optic flow sensor, which increases the accuracy of the motion parameter obtained through computation.

Abstract: An autonomous mobile device includes a main body, a protruding element disposed at a top portion of the main body, and a protection cover disposed at an outer side of the protruding element to cover the protruding element. The protection cover is movable relative to the protruding element when collided. The autonomous mobile device also includes a joystick sensor including a housing, a joystick, and a parameter detecting device. The autonomous mobile device further includes a position restoring device connected with the protection cover and configured to restore, after the protection cover experiences a displacement caused by an external force, the protection cover to a position where the protection cover is free from the external force. A first end of the joystick is connected to an inner portion of the housing. A second end of the joystick is connected to the protection cover.

Abstract: A power converter assembly includes a semi-conductor module, a heat sink mechanically connected to the semi-conductor module, a first busbar assembly on a first side of the heat sink, and a second busbar assembly on a second side of the heat sink opposite from the first side. The first and second busbar assemblies are electrically connected to one another. A power converter assembly includes a plurality of sets of semi-conductor modules, a common heat sink mechanically connected to each semi-conductor module, a first busbar assembly on a first side of the common heat sink, and a second busbar assembly on a second side of the common heat sink opposite from the first side. The first and second busbar assemblies are electrically connected to one another.

Abstract: An autonomous mobile device is provided. The autonomous mobile device includes a main body, a protruding element disposed at a top portion of the main body, and a protection cover disposed at an outer side of the protruding element to cover the protruding element, the protection cover being movably connected with the main body or the protruding element. The autonomous mobile device also includes a detecting device configured to detect an external force exerted on the protection cover or a displacement of the protection cover caused by the external force, and to transmit information of the external force or the displacement to a processor. The autonomous mobile device also includes a position restoring assembly, the processor, and an extension-retraction groove disposed on the main body at a circumference of a lower portion of the protruding element. The protection cover is inserted into the extension-retraction groove.

Abstract: The invention relates to a method for discovering specific functional antibodies, in particular to a method for discovering specific functional antibodies based on sequence composition and frequency analysis of variable regions of immune host antibodies. Compared with conventional high-throughput antibody sequencing method, this method can quickly and accurately obtain the full-length sequence of the variable region of antibody containing candidate CDR3, the success rate of antibody gene pairing is high and it is suitable for the detection of few samples, and improves the efficiency of obtaining specific functional antibodies.

Abstract: A power converter can include a first line, a second line, a capacitor line disposed between the first line and the second line, a first capacitor and a second capacitor connected to the capacitor line in series between the first line and the second line, a midpoint line connected to a midpoint between the first capacitor and the second capacitor, and a protection circuit disposed between the first capacitor and the second capacitor and configured to provide protection to one or more portions of the power converter.

Abstract: An additive manufacturing system may include a stage, a toolhead adjustable relative to the stage, an additive manufacturing unit (AM unit) adjustably connected to the toolhead, a mechanical unit adjustably connected to the toolhead, and a controller operatively connected to the toolhead, the AM unit, and the mechanical unit. The AM unit may be configured to perform an application subprocess of a unified additive-deformation-machining (ADM) process. The mechanical unit may be configured to perform a deformation subprocess of the unified ADM process. The controller may be configured to control the toolhead, the AM unit, and the mechanical unit and to coordinate performance of the application subprocess and the deformation subprocess during the unified ADM process to produce a metal additive manufactured product having at least one of a desired property and a desired characteristic.

Abstract: An electronics assembly includes a motor controller electronics arrangement with a solid-state switch array, a feeder cable connected to the motor controller and in electrical communication with the solid-state switch array, and a phase change material body. The phase change material body is thermally coupled to the feeder cable and arranged outside of the motor controller to limit conduction of heat generated by resistive heating of the feeder cable into the motor controller and through the feeder cable. Vehicles, electrical systems, and methods of cooling feeder cables in motor controller electronics arrangements are also described.

Abstract: A power adjusting circuit, an LED power supply and an LED luminaire. The power adjusting circuit includes: a zero-crossing detecting unit, adapted to generate a zero-crossing detection signal according to an high-frequency signal, wherein the zero-crossing detection signal is a pulse wave or a square wave, and the high-frequency signal is a sine wave or an AC wave; a signal processing unit, adapted to determine a second number of pulses or square waves of the zero-crossing detection signal corresponding to an adjustment signal that is input externally, according to a first number of pulses or square waves of the zero-crossing detection signal corresponding to a full-load operation of a functional device; a counting unit, adapted to generate a switch control signal according to the first number and the second number; and a switch unit, adapted to control an output of the high-frequency signal according to the switch control signal.

Abstract: A method for avoiding a predicament, the method being implemented in an autonomous mobile device. The method includes obtaining a map of a work zone, and moving the autonomous mobile device in the work zone. The method also includes obtaining sensed information acquired by at least one sensor of the autonomous mobile device, the sensed information being usable to obtain an environmental state of a first location of the autonomous mobile device when the sensed information is acquired, or an environmental state of a second location having a detecting distance from the first location of the autonomous mobile device when the sensed information is acquired. The method also includes determining, based on the sensed information, that the environmental state of the first location or the second location is a predicament; and determining the first location or the second location corresponding to the predicament as a dangerous location.

Abstract: A rotary engine includes a housing, a crank dual-slider connecting rod mechanism, and rotary casings. The vertically arranged sliding grooves are provided in the housing. The crank dual-slider connecting rod mechanism is mounted on the housing. Sliders of the crank dual-slider connecting rod mechanism are respectively located in the sliding groove. The sliders are driven by a rotation of a crank to periodically compress a gas in the sliding grooves. The two rotary casings configured to rotate synchronously are mounted on an outer side of the housing. Each of the rotary casings is provided with a combustion chamber. Any of the rotary casings is in a transmission connection with a main shaft via a transmission system. The rotary casings drive the main shaft to rotate through a combustion of a compressed gas in the combustion chambers. The rotary engine achieves a good seal.

Abstract: A method and system for detecting a typical object of a transmission line based on UAV federated learning. The method includes: determining a detection model for a typical object of a transmission line by YOLOv3 object detection algorithm according to a prior database for the typical object; dividing a UAV network into multiple federated learning units; acquiring pictures, taken by the UAV network, of the typical object and tags corresponding to each picture to determine a training database; training, based on Horovod framework and FATE federated learning framework, each federated learning unit according to the training database and the detection model for the typical object, and determining the trained UAV network according to the trained federated learning unit; and determining, by the trained UAV network, the typical object in each picture. A congestion of communication links is avoided, thereby improving detection efficiency.

Abstract: Embodiments of the present disclosure provide a reaction gas supply system and a control method. The reaction gas supply system includes a plurality of precursor containers and a plurality of supply regulator devices. The precursor container is connected to at least one of the reaction chambers. The plurality of precursor containers include at least a pair of precursor containers of an arbitrary combination. A supply regulator device is arranged between each pair of precursor containers. The supply regulator device is configured to connect the corresponding pair of precursor containers. With the reaction gas supply system and the control method of the present disclosure, the reaction gas may be ensured to be supplied stably, the utilization rate of the precursor may be increased, and the production efficiency and the product quality may be increased.

Abstract: A SIL monopulse radar includes a self-injection-locking oscillator (SILO), a transmit antenna, two receive antennas, a hybrid coupler, a first demodulator, a second demodulator and a processor. The transmit antenna transmits the oscillation signal of the SILO to object. The two receive antennas receive a reflected signal from the object as a first echo signal and a second echo signal. The hybrid coupler outputs a difference signal and a sum signal. The difference signal is injected into the SILO. The first demodulator frequency-demodulates the oscillation signal to produce a first demodulated signal. The second demodulator phase-demodulates the sum signal by using the oscillation signal as a reference signal to produce a second demodulated signal. The processor processes the first and second demodulated signals to produce a monopulse ratio signal. The SIL monopulse radar can identify the posture and motion of a human body by analyzing the monopulse ratio signal.

Abstract: A method can include perturbing an electric motor of a hybrid powerplant having the electric motor and a fuel powered engine. The method can include measuring a frequency response of the powerplant due to the perturbing of the electric motor to determine a health of the powerplant and/or one or more components thereof.

Abstract: Facilitating outlier object detection in tiered storage systems is provided herein. A system can comprise a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise determining respective parameters associated with objects of a group of objects of a tiered storage system. The respective parameters can comprise at least one of a size, an access percentage, or a cost. The operations also can comprise using the respective parameters associated with the objects of the group of objects as inputs and performing data clustering on the group of objects, resulting in at least one data cluster. Further, the operations can comprise selecting at least one object from the group of objects as at least one outlier object within the tiered storage system based on the at least one data cluster.

Abstract: A rotary engine includes a housing, a crank dual-slider connecting rod mechanism, and rotary casings. The vertically arranged sliding grooves are provided in the housing. The crank dual-slider connecting rod mechanism is mounted on the housing. Sliders of the crank dual-slider connecting rod mechanism are respectively located in the sliding groove. The sliders are driven by a rotation of a crank to periodically compress a gas in the sliding grooves. The two rotary casings configured to rotate synchronously are mounted on an outer side of the housing. Each of the rotary casings is provided with a combustion chamber. Any of the rotary casings is in a transmission connection with a main shaft via a transmission system. The rotary casings drive the main shaft to rotate through a combustion of a compressed gas in the combustion chambers. The rotary engine achieves a good seal.